//
// Created by 21577 on 2025/2/12.
//
#include<iostream>
#include<cstdio>
using namespace std;

//奇偶数判断
int main(){
    int num;
    scanf("%d",&num);
    if(num%2==0){
        printf("even");
    } else{
        printf("odd");
    }
    return 0;
}